As of March 2021, the total supply is roughly 557 billion coins at the time of this publication. Given its status as a currency for every-day use, the supply is uncapped, and will continue to expand at an inflation rate of less than 1.5% yearly
Dimecoin Core v2.3.0.0 is now available! Please update your wallets/nodes prior to block 5500000. As always, if you have any questions or concerns, please do not hesitate to contact us! Here is a direct link to the release notes and download for the software: https://github.com/dime-coin/dimecoin/releases/tag/2.3.0.0